Mold-support.



- W. S. JACKSON.

MOLD SUPPORT.

APPLICATION FILED FBB.1B, 1905.

No. 807,935. PATBNTED DB0. 19, 1905.

2 SHEBTS-SHEET 1.

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Q ffadfsm wil nenes No. 807,935. PATENTBD DEO. 19, 1905.

W. S. JACKSON. MOLD SUPPORT.

APPLICATION FILED PEB.18,1905.

2 SHEETS-SHEET 2.

muewtoz UNITED STATES WILLIAM S. JACKSON, OF VEEDERSBURG, INDIANA.

l MOLD-SUPPORT.

Specification of Letters Patent.

Patented Dec. 19, 1905.

Application tiled February 18, 1905. Serial No. 246,300.

To all whom, it may con/06771,: Y

Be it known that I, WILLIAM S. JACKSON, a citizen of the United States,residing at Veedersburg, in the county of Fountain and State of Indiana,have invented new and useful Improvements in Mold-Supports, of which thefollowing is a specification. y

This invention relates to moldsupports such as are used particularly insupporting molds or forms for sewers, concrete arches, and the like.

The objects of the invention are to improve and simplify theconstruction of such devices; furthermore, to increase their efficiencyin operation and to decrease 'the expense attending their manufacture.

IVith the foregoing and other objects in View, which will appear as thedescription proceeds, the invention resides in the arrangement of partsand the details of construction v hereinafter described and claimed as apractical embodiment thereof.

In the accompanying drawings, forming part of this specification, Figurel is a transverse section through a sewer or concrete arch, illustratinga convenient method of employing the improved mold-support of thisinvention. Fig. 2 is a longitudinal section through the structureillustrated in Fig. l. Fig. 3 is a detail perspective View of one of thebrackets. v

The reference character a indicates a body of cement or other suitablematerial, which is supported in the form of an arch by means of asuitable mold or form. The mold or form may be of any suitable form andconstruction. In the structure illustrated in the drawings the formcomprises a plurality of planks a', such as are usually employed informing structures of this character.

The improvements of the present invention relate particularly to themeans for supporting the mold, which is formed by the planks a. To thisend the invention comprises a pair of brackets A B. As shown in Fig. 3,each of the brackets preferably is formed with a mold-supporting memberl, which is shaped to conform to the character of mold employed. In theembodiment of invention illustrated in the drawings a semicircular moldis employed. For this reason the moldsupporting member l of each bracketis shaped on the quarter of a circle. In addition to the mold-supportingmember 1 each of the brackets also comprises what I shall forconvenience term a common member 2. Diverging from the common member 2on an angle slightly greater than a right angle is a pair of arms 3 4,which are connected at their separated ends with the mold-supportingmember l. The arm 3 is formed with a laterally-odset portion 5 adjacentto the mold-supporting member l for a purpose hereinafter to bedescribed. Arranged between the arms 3 and 4 is a plurality ofintermediate arms 6 7,

which diverge from the common member 2 to the moldsupporting member l,as shown clearly in Fig'. 3.

In forming an arch or sewer according to the present invention theimproved mold-supporting brackets are used in pairs, as illustrated inFigs. l andf 2, the laterally-offset portions 5 of the two bracketsbeing arranged adjacent to each other. Means are employed for separatingthe upper ends of the two brackets. W'hile any suitable meanssuch, forexample, as a wedge or block-may be used for this purpose, it ispreferred to use a turnbuckle having' saddle members 8 and 8, whichstraddle the laterally-offset portions 5 of the brackets A and B, asshown in Fig. 1. By manipulating the turnbuckle in the proper manner itwill be apparent that the brackets will be forced into the properposition to support the mold, which is formed by the planks a'. In orderthat the two brackets may be easily removed when necessary, it ispreferable to support the common member 2 of each bracket upon a block9, which may rest upon the ground or upon a suitable support 10, restingat its ends upon thickened planks af', arranged at the bottom of themold. The blocks 9 may be easily knocked away in order to permit theremoval of the brackets.

The construction of the improved mold-support of this invention is suchthat by loosening the separating' device C after the cement a has becomesuiiiciently hard the brackets A and B can be readily removed to permitthe removal of the mold, which is formed by the planks a@ Changes in theprecise embodiment of invention illustrated and described may be madewithin the scope of the following claims without departingfrom thespirit of the invention or sacrificing any of its advantages.

Having thus described the invention, what is claimed as new isll. Amold-support comprising a bracket having a mold-supporting member shapedon TOO IOS

IIO

aquarter of a circle, a common member, a pair of arms diverging fromsaid common member to said supporting member on an angle slightlygreater than a right angle, one of said arms having a laterally-oisetportion adjacent to the mold-supporting member, and intermediate armsdiverging from the common member to the mold-supporting member.

2. A moldsupport comprising a pair of brackets each having amold-supporting mem-l ber, a common mem ber and a pair of arms divergingfrom said common member to said mold-sup porting member, and adjustableseparating means disposed between said brackets.

3. A moldsupport comprising a pair of brackets each having amold-supporting member, a common member, a pair of arms diverging fromsaid common member to said moldsupporting member, one of said armshaving a laterally-offset portion adjacent to the moldsupporting memberand a separating device contacting with the laterally-oiset portions ofthe two brackets.

4. A mold-support comprising a pair of brackets each having amold-supporting member shaped on a quarter of a circle, a common member,a pair of arms diverging from said common member to said mold supportingmember on an angle slightly greater than a right angle, one of said armshaving a laterally-offset portion adjacent to the mold-supportingmember, and intermediate arms divergingfrom the common member to themoldsupporting member, and a turnbuckle having saddled memberscontacting with the laterallyoffset portions of the two brackets.

In testimony whereofl I aiX my signature in presence of two witnesses.

WILLIAM S. JACKSON.

Witnesses:

EARL GLAsoooK, J. S. RATGLIFF.

